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3 years ago

What is the slope of the line passing through the points (9,7) and (4,-3)?

Mathematics

1 answer:

viva [34]3 years ago

5 0

Answer:

Step-by-step explanation:

slope = m = (difference in y)/(difference in x)

m = (-3 - 7)/(4 - 9)

m = -10/(-5)

m = 2

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Eight of your friends came to your house to watch a movie. Three-fourths of your friends stayed overnight. How many friends stay

Lapatulllka [165]

Answer:

6 friends

Step-by-step explanation:

8 friends came to watch the movie.

3/4 of them stayed overnight.

The number of people that stayed overnight will be the product of 3/4 by 8:

3/4 * 8 = 24 / 4 = 6

6 friends stayed overnight.

8 0

3 years ago

What's the perimeter of this shape?

Strike441 [17]

Answer:

It is 20m.

Step-by-step explanation:

The perimeter equals the sum of all the sides. So 5+7+3+4+1

7 0

3 years ago

These tables represent a quadratic function with a vertex at (0,3). What is the average rate of change for the interval from X =

Eva8 [605]

Answer:

-19

Step-by-step explanation:

The missing table is shown in the attachment.

Since the quadratic function has vertex at (0,3), its equation is of the form;

$y = a {x}^{2} + 3$

To find the value of 'a' we substitute any other point from the table say (1,2) to get:

$2 = a( {1)}^{2} + 3$

$a = 2 - 3 = - 1$

Hence the function is

$y = - {x}^{2} + 3$

Now

$f(10) = - 100 + 3 = - 97$

$f(9) = - 81 + 3 = - 78$

The average rate of change from x=9 to x=10 is

$\frac{f(10) - f(9)}{10 - 9} = \frac{ - 97 - - 78}{1} = - 19$

7 0

4 years ago

How many solutions are there for 10(x + 4) – 3 = 14x + 1

oksano4ka [1.4K]

10(x+4)-3=14x+1
10(4x)-3=14x+1
40x-3=14x+1
37x=14x+1
37x=15x
X=2.5
Or your answer will be 37x=15x

6 0

4 years ago

Read 2 more answers

Find the value of x.

Olenka [21]

Step-by-step explanation:

if 25 is an answer, its that

3 0

3 years ago